This is an important change.
So far, the project was labelled as licensed under the "AGPL" (improperly since no version of the AGPL was specified)
This commit changes the license to "AGPL + Commons Clause"
The [common clause](https://commonsclause.com/) is an additional restriction forbidding companies from taking WorkAdventure of the shelf, and reselling WorkAdventure.
This license does not forbid anyone from installing and using WorkAdventure, it only targets resellers (so SAAS exploitation of WorkAdventure is limited to TheCodingMachine).
This effectively makes WorkAdventure non open-source, but the source-code remains available for anyone to see and modify.
